Yes, hair is a Scrabble word!
...and is worth 7 points in Scrabble, and 6 points in Words with Friends
hair
Noun
1. A covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss
2. A very small distance or space
3. Filamentous hairlike growth on a plant
4. Any of the cylindrical filaments characteristically growing from the epidermis of a mammal
5. Cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments
6. A filamentous projection or process on an organism
What Scrabble words can I make with the letters in hair?
3 Letter Words
2 Letter Words